org.ofbiz.base.util.collections
Class LifoSet<V>

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractSet<V>
          org.ofbiz.base.util.collections.LifoSet<V>

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<V>, java.util.Collection<V>, java.util.Set<V>

public class LifoSet<V>
extends java.util.AbstractSet<V>
implements java.io.Serializable

LifoSet - Set interface wrapper around a LinkedList

See Also:

Serialized Form

Constructor Summary

LifoSet()
Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.

LifoSet(int capacity)
Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.

Method Summary

boolean	add(V obj)
boolean	empty()
java.util.Iterator<V>	iterator()
V	peek()
V	pop()
void	push(V item)
int	search(java.lang.Object item)
void	setCapactity(int capacity) Sets the max capacity for this LifoSet
int	size()

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray

Constructor Detail

LifoSet

public LifoSet()

Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.

LifoSet

public LifoSet(int capacity)

Constructs a set containing the elements of the specified collection, in the order they are returned by the collection's iterator.

Parameters:

capacity - the collection whose elements are to be placed into this set.

Method Detail

setCapactity

public void setCapactity(int capacity)

Sets the max capacity for this LifoSet

Parameters:

capacity - Max Size (as integer)

size

public int size()

Specified by:

size in interface java.util.Collection<V>

Specified by:

size in interface java.util.Set<V>

Specified by:

size in class java.util.AbstractCollection<V>

See Also:

Collection.size()

add

public boolean add(V obj)

Specified by:

add in interface java.util.Collection<V>

Specified by:

add in interface java.util.Set<V>

Overrides:

add in class java.util.AbstractCollection<V>

See Also:

Collection.add(java.lang.Object)

iterator

public java.util.Iterator<V> iterator()

Specified by:

iterator in interface java.lang.Iterable<V>

Specified by:

iterator in interface java.util.Collection<V>

Specified by:

iterator in interface java.util.Set<V>

Specified by:

iterator in class java.util.AbstractCollection<V>

See Also:

Collection.iterator()

empty

public boolean empty()

Returns:

true if and only if this stack contains no items; false otherwise

See Also:

Stack.empty()

push

public void push(V item)

Parameters:

item - The item to be pushed onto this stack

See Also:

Stack.push(java.lang.Object)

pop

public V pop()
      throws java.util.EmptyStackException

Returns:

The object at the top of this stack

Throws:

java.util.EmptyStackException - If this stack is empty

See Also:

Stack.pop()

peek

public V peek()
       throws java.util.EmptyStackException

Returns:

The object at the top of this stack

Throws:

java.util.EmptyStackException - If this stack is empty

See Also:

Stack.peek()

search

public int search(java.lang.Object item)

Parameters:

item - The desired object

Returns:

The 1-based position from the top of the stack where the object is located; the return value -1 indicates that the object is not on the stack

See Also:

Stack.search(java.lang.Object)